| Hardware and OS Samsung Galaxy M31 Prime |
| Operating System: | Android v10 (Q) |
| Custom UI: | Samsung One UI |
| Processor: | Octa core (2.3 GHz, Quad core, Cortex A73 1.7 GHz, Quad core, Cortex A53) |
| Chipset: | Samsung Exynos 9 Octa 9611 |
| Architecture: | 64 bit |
| RAM: | 6 GB |
| Internal Memory: | 128 GB |
| Expandable Memory: | yes Up to 512 GB |
| Graphics: | Mali-G72 MP3 |
| SIM Slot(s): | Dual SIM, GSM GSM |
| Display Samsung Galaxy M31 Prime |
| Screen Size: | 6.4 inches (16.26 cm) |
| Screen Resolution: | 1080 x 2340 pixels |
| Display Type: | Super AMOLED |
| Pixel Density: | 403 ppi |
| Aspect Ratio: | 19.5:9 |
| Screen Protection: | Corning Gorilla Glass v3 |
| Touch Screen: | yes Capacitive Touchscreen, Multi-touch |
| Main Camera Samsung Galaxy M31 Prime |
| Resolution: | 64 MP f/1.8 (upto 8x Digital Zoom), Wide Angle Primary Camera(26 mm focal length, 1.7" sensor size, 0.8µm pixel size)8 MP f/2.2, Wide Angle, Ultra-Wide Angle Camera(4.0" sensor size, 1.12µm pixel size)5 MP f/2.4, Macro Camera 5 MP f/2.2, Depth Camera |
| Image Resolution: | 9000 x 7000 Pixels |
| Flash: | yes LED Flash |
| Sensor: | ISOCELL Plus |
| Camera Features: | 8 x Digital Zoom, Face detection, Touch to focus |
| Autofocus: | yes Phase Detection autofocus |
| Optical Image Stabilisation: | No |
| Physical Aperture: | F1.8 |
| Video Recording: | 3840x2160 @ 30 fps |
| Shooting Modes: | Continuos Shooting, High Dynamic Range mode (HDR) |
| Settings: | Exposure compensation, ISO control |
| Front Camera Samsung Galaxy M31 Prime |
| Resolution: | 32 MP f/2.0, Wide Angle Primary Camera(26 mm focal length, 2.8" sensor size, 0.8µm pixel size) |
| Sensor: | Exmor RS |
| Flash: | No |
| Autofocus: | No |
| Physical Aperture: | F2.0 |
| Video Recording: | 3840x2160 @ 30 fps, 1920x1080 @ 30 fps |
| Connectivity Samsung Galaxy M31 Prime |
| Network: | 4G: Available , 3G: Available, 2G: Available |
| SIM Size: | SIM1: Nano, SIM2: Nano |
| Bluetooth: | yes v5.0 |
| GPS: | yes with A-GPS, Glonass |
| NFC: | No |
| VoLTE: | yes |
| Wi-Fi: | yes Wi-Fi 802.11, a/ac/b/g/n/n 5GHz |
| Wi-Fi Features: | Wi-Fi Direct, Mobile Hotspot |
| USB Connectivity: | Mass storage device, USB charging |
| Multimedia Samsung Galaxy M31 Prime |
| Audio Features: | Dolby Atmos |
| Audio Jack: | 3.5 mm |
| Loudspeaker: | yes |
| Design Samsung Galaxy M31 Prime |
| Height: | 159.2 mm |
| Width: | 75.1 mm |
| Thickness: | 8.9 mm |
| Weight: | 191 grams Below |
| Build Material: | Back: Plastic |
| Colours: | Space Black, Ocean Blue, Iceberg Blue |
| Battery Samsung Galaxy M31 Prime |
| Type: | Li-ion |
| Capacity: | 6000 mAh |
| User Replaceable: | No |
| Quick Charging: | yes Fast, 15W |
| Quick Charging: | yes |
| TalkTime: | Up to 48 Hours(4G) |
| USB Type-C: | yes |
| Features Samsung Galaxy M31 Prime |
| Fingerprint Sensor: | yes |
| Fingerprint Sensor Position: | Rear |
| Other Sensors: | Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope |